<html>
<body>
<?php
echo "woyouxian.net", "    and    ","blabla.cn";
echo "<br/>";

$a = "woyouxian.net ";
$b = "blabla.cn";

echo $a,$b;
echo "<br/>";

$c = "just in case";

echo "take the gun,$c";
echo "<br/>";

$d = "just in case";
echo 'take the gun,$d';

?>
</body>

</html>
